#define _CRT_SECURE_NO_WARNINGS

#include<stdio.h>

int main()
{
	float x = 0.0;
	float sum = 0.0;
	float z;
	for (x = 1.0; x <= 100.0; x++)
	{
		z = 1 / x;
		sum += z;
	}
	printf("%.2f\n", sum);
	return 0;
}
